In nearly every heavy industrial application, turning threaded fasteners – nuts and bolts – is generally viewed by two criteria: (1) the need to fasten tightly enough to prevent movement of parts and achieve a good seal without exceeding the fastener’s elasticity level, and (2) successful removal of fasteners after long periods of environmental exposure to harsh conditions. Yet, ensuring you select the right torque tool for the job can be crucially influenced by the type of torque power it delivers.
When installing heavy-duty fasteners, there are times when you want just a little more power, or in other instances, a lot more power. After all, when it comes to turning nuts and bolts, especially stubborn corroded ones, what could be more basic than power? The seemingly apparent answer to that question can be profoundly consequential: You need controlled power. That is, controlled “torque.” Not only that, ideally you need smooth torque, with continuous rotation. Otherwise, you could outdo yourself and strip threads, break bolt heads or even cause personal injury.Historical approaches to working with heavy-duty threaded fasteners have aimed at sheer torque power, using long lever arms and heavy hammers on slugging wrenches. More recently, the hydraulic wrench has been viewed as the solution to many problems that require serious torque. But hydraulic wrenches are notorious for their heavy ratchets, bulky compressors and laborious operation. And they’re not cheap.
Technicians are finding that the best solution for applying torque power today is with a complete range of torque control products, including manual and powered torque wrenches and torque multipliers. From less than a few foot pounds up to more than 100 thousand foot-pounds, these torque control tools provide “continuous” torque, making it easier and often safer to assemble and service-threaded fasteners while reducing application problems and tool costs.
The advantages of continuous rotation, as provided by torque multipliers, are especially beneficial when it comes to heavy-duty torque fastening applications. Hydraulic tools operate through a hydraulic ram that extends and retracts, ratcheting the head. This is a long and tedious process that requires the operator to activate and stand by the pump with a hand-held controller.
On the other hand, continuous rotation tools eliminate the ratcheting and hammering, producing the correct torque values through smooth, constant gear manipulation. Mountz Torque Multipliers are a good example of continuous torque for heavy-duty use and are proven to achieve the correct torque values in a quicker, more cost-efficient manner.
A shop foreman working at a worldwide supplier of steam turbines, compressors and other turbomachinery for the oil and gas markets, replaced a hydraulic torque wrench system with a Mountz, Inc. CLS pneumatic torque multiplier at an oil field maintenance facility in Louisiana. Read the rest of this page »
Read the rest of this page »